Summary of Recourse and Market-to-Market Provisions (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Goldman Sachs | Repurchase Agreements | Loans Investment
Debt Instrument [Line Items]
Initial Maturity Date	Aug. 19, 2021	Aug. 19, 2021
Extended Maturity Date	Aug. 19, 2022	Aug. 19, 2022
Recourse guarantee percentage	25.00%	25.00%
Wells Fargo | Repurchase Agreements | Loans Investment
Debt Instrument [Line Items]
Initial Maturity Date	Apr. 18, 2022	Apr. 18, 2022
Extended Maturity Date	Apr. 18, 2022	Apr. 18, 2022
Recourse guarantee percentage	25.00%	25.00%
Barclays | Repurchase Agreements | Loans Investment
Debt Instrument [Line Items]
Initial Maturity Date	Aug. 13, 2022	Aug. 13, 2022
Extended Maturity Date	Aug. 13, 2022	Aug. 13, 2022
Recourse guarantee percentage	25.00%	25.00%
Morgan Stanley | Repurchase Agreements | Loans Investment
Debt Instrument [Line Items]
Initial Maturity Date	May 04, 2022	May 04, 2021
Extended Maturity Date	May 04, 2022	May 04, 2022
Recourse guarantee percentage	25.00%	25.00%
JP Morgan | Repurchase Agreements | Loans Investment
Debt Instrument [Line Items]
Initial Maturity Date	Oct. 30, 2023	Oct. 30, 2023
Extended Maturity Date	Oct. 30, 2025	Oct. 30, 2025
Recourse guarantee percentage	25.00%	25.00%
US Bank | Repurchase Agreements | Loans Investment
Debt Instrument [Line Items]
Initial Maturity Date	Jul. 09, 2022	Jul. 09, 2022
Extended Maturity Date	Jul. 09, 2024	Jul. 09, 2024
Recourse guarantee percentage	25.00%	25.00%
Institutional Financing | Repurchase Agreements | Loans Investment
Debt Instrument [Line Items]
Initial Maturity Date	Oct. 30, 2023	Oct. 30, 2023
Extended Maturity Date	Oct. 30, 2025	Oct. 30, 2025
Recourse guarantee percentage	25.00%	25.00%
Bank of America | Senior Secured and Secured Credit Agreements | Repurchase Agreements | Loans Investment
Debt Instrument [Line Items]
Initial Maturity Date	Sep. 29, 2021	Sep. 29, 2021
Extended Maturity Date	Sep. 29, 2022	Sep. 29, 2022
Recourse guarantee percentage	25.00%	25.00%
Institutional Lender | Asset-specific Financing
Debt Instrument [Line Items]
Initial Maturity Date	Dec. 15, 2021	Dec. 15, 2021
Extended Maturity Date	Dec. 15, 2022	Dec. 15, 2022